I know this version we have here is some sort of Beta, Pre-release version, so many of the new animations are not included (you can see the placeholders in many spots)
There's a weird bug though where many images are missing (All the massage images titlled "SAM_xxxx" are missing in the game, but they are present in the /image folder. I'm a noob with Ren'py, but I thought the game was supposed to parse them there, if they are present.
Also, later in this update, I've noticed an issue where the images first show up as not present (text on bottom of the screen with a checkerboard transparent background) but then the image loads in... sort of like some sort of lag.
I'm wondering if the fact that the DEV switched all the images to webp at the same time he upgraded his core Ren'py version is causing some issues.